I hope so. I think Hemmer is such an interesting, well acted character, and a chance to further explore the Aenar. I'd love if he were brought back, somehow. Maybe pull a Georgiou with Hemmer. As much as I'm tired of this ruse, I wouldn't mind if they used it one more time. Even just going back to the planet and discovering that as an Aenar, Hemmer survived the harsh environment. But, I'm still wistfully thinking that Sito Jaxa is still around, somewhere.
I haven't started watching SNW season 2, yet. I intended to wait for all or most of the season's episodes to be released, but I feel like I'm losing that battle with myself. So if there's been any mention of Hemmer in season 2, I know about it yet.
My favorite of Bruce Horak's Hemmer art I've seen is "They Took the Ship ..."